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Working alone, Jack can do a puzzle in 5 hours. With his brother's help, the two can do the same puzzle in 2 hours. How long would it take Jack's brother to do the puz…

Working alone, Jack can do a puzzle in 5 hours. With his brother's help, the two can do the same puzzle in 2 hours. How long would it take Jack's brother to do the puz…
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1 vote
Working alone, Jack can do a puzzle in 5 hours. With his brother's help, the two can do the same puzzle in 2 hours. How long would it take Jack's brother to do the puzzle alone?

asked
User Dorkmania
by
9.0k points

1 Answer

0 votes

Answer:

3 hours and 20 minutes

Explanation:

(I'm so sorry I forgot the work)

answered
User Silhouette Hustler
by
8.0k points
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